Pitter-knife



S. J. DUNKLEY.

PITTER KNIFE.

APPLICATION FILED JAN.28, 1919.

1,874,290. I Patented Apr. 12, 1921.

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EEAMUEL J. DUNKLEY, 0F KALAMAZOO, MICHIGAN, ASSIGQNOB T0 DUNKLEY GOMFANY, OF KALAMAZOO, MICHIGAN, A. OOREORATION OF MICHIGAN.

BITTER-KNIFE.

navaaao.

Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed January 28, 1919. Serial No. emcee.

T 0 all whom it may concern.

Be it known that I, SAMUEL J. DUNKLEY, a citizen of the United States, residing at Kalamazoo, Michi an, have invented certain new and useful Improvements in Pitter- Knives, of which-the following is a specification.

This invention relates to improvements in pitter knives. The object of the invention is to provide an im roved electrically operated oscillating itting knife.

Objects pertaining to details and economies of construction and operation will definitely appear from the detailed descriptlon to follow. The invention is clearly defined and pointed out in the claim.

A structure which is a preferred embodiment of my invention is fully illustrated in the accompanying drawing, forming part of this specification, which:

Figure I is a longitudinal sectional View through the pitter knife structure embodying the features of my invention, certain portions being shown in full lines, taken on line 1--1 of Figs. II and III.

Fig. 11 is an end elevation view of the structure appearing in Fig. I, taken from the top end of the said figure.

Fig. III is a detail sectional view taken on line 3--3 of Fig. I.

Fig. IV is a detail sectional view taken on line 4r-4: of Fig. I.

In the drawing the sectional views are taken looking in the direction of the little,

arrows at the ends of the section lines and similar numerals of reference refer to similar parts throughout the several views.

This pitting knife is intended for use in removing the pits from the split fruit, the fruit being usually cut in halves by circular saws.

Considering the numbered parts of the drawing, 1 is a hollow handle, 2 is a bifurcated arm or fork on the end thereof carrying a rocker 3 which is pivoted at 4: between the said arms. An are shaped blade 5, in the arc of a circle, the center of which is the pivot 4:, is carried by said rocker.

proper delivery of the current.

A reciprocating bar or slide 6 is disposed in the handle and connected by a suitable pivot 7 to the rocker 3. The bar 6 is disposed within the core of a pair of magnets 8, 9, adapted to be reciprocated thereby through the provision of an armature 10, which is acted upon alternately by the coils 8 and 9 to induce reciprocation and vibration, thereby causing oscillation of the rocker 3 carrying the blade 5. Suitable electric connections 11 are provided for the Of course, alternating current might be delivered to a magnet to secure vibration in this way, but the thing that I have made use of is preferred by me. Electric vibrations are common devices and any such can be made use of here.

I have thus shown that the details can be greatly varied.- A knife might be carried by the bar 6 and do very good work. I desire a rocker pivoted between the arms of. said fork and connected to said reciprocating bar,

and a curved blade carried by the said rocker, the blade being the arc of a circle, the center of which is the pivot of oscillation, all coacting substantially as described for the purpose specified.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

SAMUEL J. DUN KLEY. Witnesses:

LUELLA G. GBEENFIELD, MARTHA J. GREGORY. 

